I note that, like many other shroudies,
@bobdroege7 is attempting to pivot from the 'invisible patch' to 'undetectable reweave' to attempt to explain why the experts who examined the shroud prior to the radiocarbon sampling managed take apieve that hasn't the "real" cloth.
This was a popular theory amongst shroudies around '02/'03 but is, naturally, as nonsensical as their various other attempts to cope with the annoying science that contradicts their opinions.
The "undetectable reweave' excuse says that, unlike the other shroud patches which are bloody obvious to the naked eye, the patch in the sampled area was rewoven at some time using later threads that caused the C14 dating to be off.
Now there are several reasons why this "theory" is drivel.
1. Firstly reweaving, which is a real technique used to repair textiles, generally uses threads fro, the cloth, either from the damaged area or harvested from elsewhere.Hence it would have very little effect on carbon dating.
2. If foreign threads are introduced during such a repair then they have to be woven into the existing threat=ds at some point, something that is quite obvious on close inspection, especially when done by three experts using magnifiers and microscopes. And, as we discussed in the Jabba days, such repairs are quite obvious when the cloth is examined from the rear.
3. Then there is the lack of evidence for such work. Was it done in the 1350s? If so it would be a unique example of such subtle repair work, far beyond anything known to hextile historians. Was it done later still, when techniques had improved, blending in threads from a later date. If so,then when, why and by whom?
This theory falls down in two respects, lack of historical evidence that such repairs were carried out and the common problem of the amount of material that would have to be added to offset the C14 results by (according to shroudies) some 1300 years.
No, we have to consign the "undetectable reweave' to the same bin of failed theories as 'contamination' and "invisible patch'. The Lirey cloth remains a medieval creation.